Quantong Qiu a1da95ef44 Scale P800 long-context matrix to concurrency=1 for stability
- P800 INT8 cannot sustain >1 concurrent long-context request without OOM;
  set all scenarios to concurrency=1.
- Keep max_running=2 because max_running=1 triggers req_to_token_pool
  allocation failures in this image.
- Reduce 64k max_context_len to 72000 (65536 + 4096 + pad).
- Make run_bench.sh resilient to container death: detect dead container and
  skip remaining scenarios in the group instead of crashing the orchestrator.
- Update README to document the concurrency limitation.
2026-07-09 05:59:28 +00:00

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# P800 Long-Context Matrix for DeepSeek-V4-Flash-INT8
Long-context throughput/latency matrix for SGLang-XPU on Kunlun P800 (8x XPU).
## Scope
- Model: `DeepSeek-V4-Flash-INT8` (W8A8 INT8)
- Backend/engine: `sglang-xpu`
- Hardware: 8x Kunlun P800 XPU
- Input lengths: 64k, 128k
- Output lengths: 256, 1024, 4096
- Concurrency: **1** — P800 INT8 can only sustain one concurrent long-context request without OOM; `max_running=2` is kept because `max_running=1` triggers `req_to_token_pool` allocation failures in this image.
## Usage
```bash
cd /data1/yy/sskj/experiments/dsv4_p800_long_context_matrix
bash run_bench.sh
```
Optional environment overrides:
```bash
PORT=30013 RUN_ID=myrun bash run_bench.sh
```
## Outputs
Results are saved under `results/${RUN_ID}/`:
- `raw_outputs/`: raw `sglang.bench_serving` JSONL files
- `report.md`: parsed per-scenario metrics
- `results.json`: structured metadata + scenarios